A 12-year-old boy is being treated in the "worst case of malnutrition" a St. George doctor has ever seen, according to court documents in a child abuse case.

Toquerville resident Brandy Kay Jaynes, 36, was arrested on a second-degree felony charge of aggravated, intentional child abuse early Monday morning. She's being held on a $20,000 cash-only bail.

According to the probable cause statement in the case, a detective from the Washington County Sheriff's Office responded to a child abuse call at Dixie Regional Medical Center's emergency room on Sunday.

"I could see ... a small-framed child that appeared to be very skinny," the officer wrote in the report.

The victim's father was present, and he told detectives he transported his son to the hospital after he found him locked in an upstairs bathroom inside the mother's home, according to the statement. He allegedly told authorities he found his son lying on the floor of the bathroom under a blanket.

The officer wrote in the report that detectives found the bathroom in the home, and they observed two latches on the exterior of the bathroom door, as to lock the door from the outside.

According to the statement, detectives entered the bathroom and observed feces covering the floor. The toilet bowl was "full of feces to the point that you could not see any water," according to the report.

Detectives found a few empty cans of beans in the shower, and the shower's drain was covered in duct tape. Detectives located a video camera and baby monitor duct-taped to the shower's ledge, the report alleges.

The father told detectives a sheet was covering the bathroom door, and, according to the report, detectives also uncovered a sheet draped on one side of the bathroom door, as described by the child's father.

The victim's mother allegedly told detectives her son chose to live and sleep in the bathroom, the statement reads, and she said she would occasionally lock him in the bathroom "for his safety when she would leave the house." The report alleges the mother also said she was trying to keep her son's weight up by feeding him protein drinks.

During her initial court appearance Monday via video conference, Jaynes told Wilcox she had two other children who aren't living with her. Wilcox appointed defense attorney Ariel Taylor to represent her.